So as Guns N' Roses' introductory music played just prior to their first song at the T-Mobile Arena in Las Vegas, Rose was suddenly wheeled onto this stage aboard the same gigantic metal throne Grohl used last year after breaking his leg by falling off the stage during a June show in Sweden.

It was revealed earlier today that Rose broke the fifth metatarsal in his left foot, and has had a plate and screws inserted to aid the healing process. Before the seventh song in tonight's set (a fantastic version of "Rocket Queen"), Rose thanked Grohl and also professed to have nothing to do with the fact that the throne's distinctive red "FF" logo was temporarily covered up.

Sure enough, when he returned for the encore the cover was removed, proving this was indeed the very same throne Grohl used. (it was pretty unlikely there were two of these around.) Rose once again thanked the Foo Fighters' frontman, remarked "I could see how you could get used to this," and cracked up very noticeably after singing the "I sit here on this chair.." line in "Patience."

But the throne posed an unforeseen logistical problem. Placed dead center, it obscured drummer Frank Ferrer. A few songs into the set, it was moved to slightly stage right, which caused keyboardist Dizzy Reed to be largely blocked, for which Rose apologized.

Not only did Grohl lend Rose the throne, but, as you can see in the below tweet, he was spotted in the arena with his Foo Fighters bandmate Taylor Hawkins. And we wouldn't be too surprised if we found out that Grohl rented a U-Haul and personally drove the throne across the desert.